Generation of Linear Waves in BoseEinstein Condensate
Flow Past an Obstacle

Yu. G. Gladush and A. M. Kamchatnov

Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow oblast, 142190 Russia

e-mail: gladush@isan.troitsk.ru

e-mail: kamch@isan.troitsk.ru

Received March 6, 2007

Abstract—A theory of linear wave patterns developing in Bose–Einstein condensate flow past an obstacle is
developed. The results obtained characterize the wave crestline geometry and the far-field dependence of the
wave amplitude on coordinates. The theoretical predictions agree with the results of previous numerical simu-
lations and provide a qualitative explanation of experiments on the flow of a Bose–Einstein condensate released
from a trap past an obstacle.

PACS numbers: 03.75.Kk

DOI: 10.1134/S1063776107090075

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